Implement GH actions (#881)

* Implement GH actions

* Only build pushes to master

* Don't test Node's own behavior

* Test on Node 16

.github/workflows/ci.yml

@@ -0,0 +1,21 @@
+name: Node.js CI
+on:
+  push:
+    branches: master
+  pull_request:
+
+jobs:
+  test:
+    strategy:
+      matrix:
+        node: [12.x, 13.x, 14.x, 15.x, 16.x]
+        os: [ubuntu-latest, macos-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - uses: actions/checkout@v2
+    - name: Use Node.js ${{ matrix.node }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node }}
+    - run: npm install
+    - run: npm test

lib/ensure/__tests__/symlink.test.js

@@ -304,22 +304,6 @@ describe('fse-ensure-symlink', () => {
     })
   }
 
-  describe('fs.symlink()', () => {
-    const fn = fs.symlink
-    tests.forEach(test => {
-      const args = test[0].slice(0)
-      const nativeBehavior = test[1]
-      // const newBehavior = test[2]
-      if (nativeBehavior === 'file-success') fileSuccess(args, fn)
-      if (nativeBehavior === 'file-broken') fileBroken(args, fn)
-      if (nativeBehavior === 'file-error') fileError(args, fn)
-      args.push('dir')
-      if (nativeBehavior === 'dir-success') dirSuccess(args, fn)
-      if (nativeBehavior === 'dir-broken') dirBroken(args, fn)
-      if (nativeBehavior === 'dir-error') dirError(args, fn)
-    })
-  })
-
   describe('ensureSymlink()', () => {
     const fn = ensureSymlink
     tests.forEach(test => {
@@ -358,22 +342,6 @@ describe('fse-ensure-symlink', () => {
     })
   })
 
-  describe('fs.symlinkSync()', () => {
-    const fn = fs.symlinkSync
-    tests.forEach(test => {
-      const args = test[0].slice(0)
-      const nativeBehavior = test[1]
-      // const newBehavior = test[2]
-      if (nativeBehavior === 'file-success') fileSuccessSync(args, fn)
-      if (nativeBehavior === 'file-broken') fileBrokenSync(args, fn)
-      if (nativeBehavior === 'file-error') fileErrorSync(args, fn)
-      args.push('dir')
-      if (nativeBehavior === 'dir-success') dirSuccessSync(args, fn)
-      if (nativeBehavior === 'dir-broken') dirBrokenSync(args, fn)
-      if (nativeBehavior === 'dir-error') dirErrorSync(args, fn)
-    })
-  })
-
   describe('ensureSymlinkSync()', () => {
     const fn = ensureSymlinkSync
     tests.forEach(test => {